√
Square Root Symbol (√)
Copy the Square Root symbol √ to your clipboard, and see its Unicode code point, HTML entity, LaTeX command and how to type it on any device.
What does √ mean?
The radical sign √ denotes the square root: √9 = 3. With an index it gives other roots. Its official Unicode name is SQUARE ROOT.
Codes and properties
| Character | √ |
|---|---|
| Unicode name | SQUARE ROOT |
| Code point | U+221A |
| Decimal | 8730 |
| Unicode block | Mathematical Operators |
| HTML entity | √ · √ · √ |
| CSS | \221A |
| JavaScript / JSON | \u221A |
| Python | \u221A or \N{SQUARE ROOT} |
| UTF-8 bytes | E2 88 9A |
| LaTeX | \sqrt{x} |
How to type √
- Copy & paste: press the Copy button above, then paste √ anywhere — Word, Google Docs, email, chat or code.
- Windows (Word, WordPad, Outlook): type
221Athen press Alt+X. In any app, Win+. opens the symbol panel. - Windows Alt code: hold Alt and type
251on the numeric keypad (Num Lock on), then release Alt. Works in Word, Notepad and most desktop apps. - Mac shortcut: press Option+V (US keyboard layout).
- Mac (any symbol): switch to the Unicode Hex Input keyboard, hold Option and type
221A; or press Ctrl+Cmd+Space and search “square root”. - Linux (GTK/IBus): press Ctrl+Shift+U, type
221a, then Space. - HTML:
√renders as √. - LaTeX:
\sqrt{x}in math mode (amssymb package for some symbols).
Frequently asked questions
How do I type √ on Windows?
In Microsoft Word type 221A and press Alt+X. In any app press Win+. to open the symbol panel, or copy √ from this page. You can also hold Alt and type 251 on the numeric keypad.
How do I type √ on a Mac?
Press Option + V on a US keyboard layout, or open the Character Viewer with Ctrl+Cmd+Space and search for it.
What is the HTML code for √?
Use √ or √ (hex) or √ (decimal).
What is the LaTeX command for √?
Use \sqrt{x} in math mode.
Related symbols
Keep exploring
Reference: Unicode code chart: Mathematical Operators (U+2200–U+22FF)